Final answer:
Without the mass of the barbell, it's not possible to accurately determine its weight on Mars using the provided acceleration due to gravity 3.71 m/s². The formula for calculating weight is w = mg, where w is weight, m is mass, and g is gravitational acceleration.
Therefore, None of the above is correct.
Step-by-step explanation:
The question is related to the weight of an object on Mars. The weight of an object can be calculated using the formula w = mg, where w is the weight, m is the mass of the object, and g is the acceleration due to gravity. To find the weight of the barbell on Mars, we need to multiply its mass by the acceleration due to gravity on Mars, which is given as 3.71 m/s²..
However, the mass of the barbell is not provided in the question. If we assume the barbell has a mass that results in one of the given weight options when the calculation is done using the acceleration due to gravity on Mars, we can determine the correct answer. For example, if the barbell weighs 9.8 N on Earth (where g = 9.80 m/s².), it has a mass of 1.0 kg (since 9.8 N / 9.80m/s²= 1.0 kg). On Mars, the weight of a 1.0 kg object would thus be (1.0 kg)(3.71m/s²) = 3.71 N, which does not match any of the given answer choices.